Mututal Funds and SIP Investment in Nepal?

So I'll just get straight to the point. Does it seem logical to invest like 15k -20k ( or lets say 50k *wink, wink* ) in SIP every month. I don't want to deal with buying and selling stuff in the share market too much work.

NOTE: I don't want to get rich quick. I want it stay there for maybe 10+, 20+ years.